Function: this tool is designed to fishing some small magnetic fish in the bottom of a well.
Applicable documents: SY/T5147-2000
principle of work
When Lay down the tool reach the top of fish, inject the ball before flushing well, steel ball
brimming with the channel which is circulating, compel the liquid change flow direction,
go through the annular space and cross declivitous micro bore then enter the tool and casing
annular space spurt down. liquid cross the bottom of well returning to the basket, then through
four intercommunicating pore returning, formation a revcirc fluent channel.
operational process
When landing the tool to the place of a single joint above target depth, putting on the pump
direct circulation, start flushing, after everything goes well stop pumping and begin to inject ball.
When Pump pressure Slightly higher show the ball was already reach.
Lay down the drill column to target depth, and raise it 1-2 meters slowly, then quickly lay
down the drill column 2-3 meters to the bottom . So repeated several times, and then pulling
out the fish.
the type and main parameter of Anticirculating fishing magnet
|
type |
connection |
be suitable of hole mm |
suction KN |
oC (W.T ) |
|
|
P |
G |
||||
|
CL-86F（P&G） |
Nc26 |
95~108 |
≥3 |
≤120 |
≤250 |
|
CL-100F（P&G） |
2 7/8TBG |
108~121 |
≥5 |
||
|
CL-115F（P&G） |
Nc31 |
121~137 |
≥6 |
||
|
CL-125F（P&G） |
Nc38 |
137~149 |
≥7 |
||
|
CL-145F（P&G） |
Nc38 |
149~184 |
≥9 |
||
|
CL-175F（P&G） |
Nc50 |
184~216 |
≥11 |
||
|
CL-190F（P&G） |
Nc50 |
203~229 |
≥13 |
||
|
CL-200F（P&G） |
Nc50 |
216~241 |
≥15 |
||
|
CL-225F（P&G） |
6 5/8REG |
241~279 |
≥18 |
||
|
CL-265F（P&G） |
6 5/8REG |
279~311 |
≥22 |
||
|
CL-290F（P&G） |
6 5/8REG |
311~375 |
≥26 |
||
